race veterans plz help!!!!!!!

First thing I would do is check for a vacuum leak. Fire the car up and let it idle. Spray some carb cleaner around all the (intake & carb) gaskets and hoses to make sure you don't have any leaks. If you have vacuum hoses going to the carb that you aren't sure what is for, remove the hose and plug the port on the carb/intake. If you are running a PCV check and make sure it is working correctly. It should suck closed at an idle (high vacuum). If you are sure there are no vacuum leaks, the next thing I would suspect is you got some debris in the carb when you changed the fuel lines. Turn the engine off and look in the carb. Pull on the throttle cable and check for a nice steady stream of fuel from the the shooters. You should see the stream start as soon as you even think about pulling on the throttle. If the stream hesitates or looks uneven between the shooters, you probably have soem debris stuck in the accelerator pump passeges.

If everything still looks good, I would drop the shooter size back to the 35 you had before and see what it does.

All of the above assumes you have good time with 15 initial and 20 mechanical in the distributer.